Answer:
This is True.
Explanation:
Biologists use the fluid mosaic model to describe membrane structure. The framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center.
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I think it’s C, cooling and hardening, but I might be wrong. If it’s wrong then I’m sorry.
Answer:
Tall(Tt), Tall(Tt), Short(tt), Short(tt), 50% Tall stems, 50% Short stems
Explanation:
If the Tall plant is heterozygous it means that there is a dominant allele for Tall (T), but the short (t) allele is still present. Therefore the genotype for this parent would be Tt. Homozygous means that there are two of the same allele, so in this case Homozygous recessive would be tt.The probability of offspring from these two parents can be determined from a Punnet Square or the Foil method ( which I have shown further ). Equation: Tt*tt
First- First Terms of each parent; T*t
Outer- First Term of first parent and Last Term of second parent; T*t
Inner- Last Term of first parent and First Term of second parent; t*t
Last- Last Term of first parent and Last Term of second parent; t*t
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Answer:
D. Pheasants that pecked immediately after hatching had the highest survival and reproductive success
Explanation:
This means that behavior of pecking increased their survival and reproductive success and become favorable by natural selection.
Natural selection is evolutionary mechanism which favours traits (structures, behavior) of an organism that help him survive and reproduce. In the example, above, pheasants that pecked survived and that was the favorable trait by natural selection.
